Paraffining-machine



E. L. LAKE.

PARAFFINING MACHINE.

APPLICATION FILED JUNE 12. 1919.

I Patentd Nov. 18, 1919.

5 SHEETS-SHEET l.

E. L. LAKE.

v PARAFFINING MACHINE. APPLICATION FILED JUNE 12 I919.

Patented Nov. 18, mm.

5 SHEETSSHEET 2.

, E. L. LAKE.

PARAFFINING MACHINE.

APPLICATION FILED JUNE 12. I919.

m wzsm Patented Nov. 18, 191.9.

5 SHEETS-SHEET 3- m r w 3 a a 7 W o 1? 9 w y a a 4 =fl 4% J/WQ g glzzg E. L. LAKE.

PARAFFINING MACHINE.

APPLICATION FILED JUNE 12. 1919.

Patented Nov. 18, 1919.

' 5 SHEETS-SHEET 4.

E. L. LAKE.

PABAFFINING MACHINE. APPLICATION FILED JUNE 12, 1919- Paiented Nov. 18, 1919.

5 SHEETS-SHEET 5.

- UNITED STATES PATENT oFFioE.

ELLSWORTH L. LAKE, OF MONROE, MICHIGAN, ASSIGNOR TO THE WEIS FIBRE CONTAINER CORPORATION, SOUTH DAKOTA.

or MONROE, MICHIGAN, A. CORPORATION or PlmArFImNe-MAoHmn.

Patented Nov. 18, 1919.

Application filed June 12, 1919. Serial No. 303,729.

To all whom it may concern:

Be it known thatv I, ELLSWORTH L. LAKE,

.a citizen of the United States, residing at Monroe, in the county of Monroe and State of Michigan, have invented certain new and useful Improvements in Parafiining -.M.a chines; and I do declare the following to be a full, clear, and exact descrap-tlon of the invention, such as will enable others skilled in the art to which it appertalns to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification. My invention relates to and its object is to provide a machine for thoroughly ,rapidly and cheaply paraflinmg paper receptacles for liquids, such, for instance, as paper milk bottles, as well as containers for other commodities, andmore particularly, a machine which shall be compact, and which shall have its feed and discharge points close together so that it shall require the attentionof but one operator. 7

In the use of machines of the character indicated it is important that the fragile containers to be treated'shall be introduced into and removed from the holders which carry the containers through the paraffin bath, in such manner that they shall not be broken or marred. To this endmy machine is also designed to provide devices for mechanically feedmg into the machine apair of containers to be parafiined, and at the same time dis-' charging from the machine a pair of finished containers, and in such manner that the containers shall not be crushed or otherwise injured. a

My invention also includes devices WhlCh adapt my apparatus for the treatment of containers of any. size or shape, within certain limits.

My devic consists of the construction and I arrangement of parts hereinafter described, and shown and illustrated in the accompanying drawings, in which- Figure 1 is a side-elevation of mymachine with portions of the case removed or broken away to show the interior mechanism; Fig. 2, an end-elevation of the same with portions of the case broken away; Fig, 3, a front-elevation of a portion of my machine on an enlarged scale, of one of the holders hereinafter referred to, detached; Fig. 6, an end-view of the same, on a reduced scale; Fig. 7, a plan-view, on an enlarged scale, of the feed-slide hereinafter referred to; Fig. 8, a. side-view of the same, and Fig. 9, a front'view of the same.

Like numerals of reference indicate like partsthroughout the drawings. j

In the drawings 1 is a substantially rectangular case, preferably of sheet metal, in the lower part of which is a hot'water tank 2, suitably piped for water and steam and in which is suitably supported a tank 3 for melted paraffin. Sprocket Wheels 4 are j ournaled in the sides of the tank 3 and are for of the case 1, carries at one end driving pul-.

ley 8' and at its other end a variable speed cone-pulley 9 belted to a like corresponding pulley 10 011 one end of shaft 11 journaled on the rear,side of the machine. Upon the opposite end of the shaft 11 is fixed a pinion .12 meshing with gear 13- on shaft 14 journaled in the sides of the case 1. The gear 13 carriesa wrist-pin 15 connected with one end of pitman 16 the other end of which is pivotall connected, as at 17, with one end of oscil ating bar '18. This bar .is pivoted near its middle upon the projecting end of shaft 6 and carries at its end opposite the pivot 17 a pawl 19 arranged to engage in its recurrent forward movement the teeth of ratchet-wheel 2O fixed on shaft 6. It will be seen that through this train of gears, intermediate the driving pulley and the ratchetwheel 20, a step-by-step movement is impart.- -ed to the sprockets 45 and to their endless chains.

The chains 21, above referred to, carried by the sprockets 45, are connected by transverse rods 26 the ends of which, 26,-

form pivots in the joints of the endless chains and upon which are loosely supported, side by side in pairs, holders 27 for the containers to be treated. The holders are pivotally connected to their preceding and following holdersby means of link-bars. It is necessary that these holders allow the easy introduction and withdrawal of the containers, but without permitting their escape during their course through the machine and the paraflin bath, and without interfering with the thorough coating of the exterior of the containers in the paraflin bath. It isalso necessary that these holders be adjustable, Within certain limits, to any size or shape of container. To these ends are employed the devices illustrated on' an enlarged scale in Fig. 5, (a description of, one of which will suffice for all,) and .in which 2828 are upright sheet metal plates disposed side by side in pairs, each pair being ada ted to receive between them a container. hese plates at their upper rear corners are clamped, as at 28, upon the upper carrier-bar 26. 29 is a .gage-bar extending transversely beneath the lower edges of the plates 28, and having for each of the plates a slot 30. Through a lug 31 extending down from each plate, and through the several slots 30, extends a'clamping bolt 32.

The clamps-'28 and 31 serve to hold the pairs of plates 28 rigidly in such adjusted flare slightly apart at front to furnish a con- I venient lateral guide for the introduction of containers. In order to reduce to a mini-. mum the surface contact between the con-- tainer and the sides of the plates 28, the latter are inwardly dented, as at 28". to form slight rounded protuberances which touch the sides of the container when in place in the holder. One of the plates 28, of each pair. is provided on its outer side with a vertical bar 33, vertically slotted as at 34 Through the plate 28 at the side of the bar 33 is a slot 35. 36 is a horizontally disposed gage-bar on the inner side of the plate and having a lug 37 which extends through the slot 35. By means of a clamping bolt 38 extending through and slidable in the slot 34, the gage 36 may be secured in the holder for engagement with the top of a container,

at any desired height. Each of the plates 28, of each pair, has at bottom an inwardly turned flange 39 which forms a support for the bottom of the container. These, flanges at their outer ends are turned slightly downwardly while the gages 36 at their outer ends are turned slightly upwardly, thus furnishing guidance in a vertical direction for the introduction of a container into the holder.

40 is a sheet metal drip-plate which proof openings 41, one pair being directly above the other. (See Fig. 3 These pairs of openings correspond exactly with two pairs of holders 27 at points where the holders pause between their recurrent movements. The lower openings are designed to receive simultaneously a pair of untreated containers, and the upper openings to permit the discharge at the same time of a pair of containers which have passed through the paraffin bath. 42-42 are brackets which support a table or frame 43 which coincides. with the lower pair of openings. Across and above this table extends a bar 44 supported and arranged to slide laterally in guides 45 on the brackets 42. To each end of the bar 44 is pivotally connected, as at 46, the outer end of arod 47 passing through an opening 48 in' the case 1. The side-members or brackets 42 of the table or frame 43 are connected at front and rear by bars 49.

"Upon these bars are supported in pairs the ends of the guide-strips 50. These strips are movable laterally upon the bars 49 and may, by. means of clamping screws 50", be clamped in proper separated relation to correspond to the alinement and adjustment of the plates 28. This adjustment may be quickly attained by means of the same gagebar above referred to, the bars 49 having holes 49 for the reception of the pin of such gage-bar. The pairs of strips 50 flare outwardly at top to permit the ready introduction between them of the containers to be treated, and have inwardly projectlng flanges 50 for the support of the bottoms of the containers. Secured adjustably to the bar 44, midway between the pausof guide-strips 50, are feed-members 51 having a vertical portion 51 adapted engage and propel a container when placed 1n front of 1b The inner ends of the rods 47 are pivotally ably supported within the case of the machine. Fixed on the shaft 54 at its middle is an upwardly projecting arm 56 which pivotally and slidably engages a cross-rod 57. (See 1F ig. 1). This cross-rod 57 at each end engages a piece 58 which slides to and fro on guides 59 supported on top of the frame 55. Each piece 58 carries a bar 60 having onits outer end a plate 61. These plates coincide with the upper openings 41 in the front of the case 1. 62 isa cam-rod connected at its lower end to the short arm of the lever 53, as at 63. At its upper end the cam-rod 62, to preserve its alinement, bestrides shaft 14. The cam-rod carries a camroller 64 traveling in-cam-race 65 in cam 66 fixed on shaft 14.

Just previously to each pause of the train of holders 27 the operator places two containers a, mouths-upward, upon the table in front of the lower openings 41. At theinstant the pawl. 19 begins its retreat the cam 66, through cam-rod 62, swingsthe lever 53, pulling inwardly the rods 47. These, through cross-bar 44 and the feed-members 51; force the pair of containers a into the clasp of the pair of holders 27. which now coincide with the lower pair of openings and which were vacated at the last preceding pause of the sprockets. While the lower end of the lever 53 is thus pulling a pair of containers into the machine, the up er end of the arm 56 is pushing from their iolders. through the upper openings 41, by means of bars 60 and plates 61, a pair of containers. This pair -of containers has now completed its circuit through the hot paraffin bath, having been filled upon entering the bath and emptied on leaving it. Next the cam 66 causes the quick reverse swing of lever 53 .andarm 56 to their original positions at the moment the sprocket chains and their burdens begin their. next step, driven by the now advancing pawl 19. Now the parts are in position for a repetition. of the several movements above described.

In front of and immediately beneath the upper openings 41 runs an endless belt 67, arranged to receive on its upper stretch the containers as they are ejected. This belt runs on pulleys"68-69, the latter being driven by gears, not shown. The belt extends a considerable distance away from the machine to facilitate the cooling of the containers and tobring them to the packers.

It will now be seen that the machine here 'described will, within certain limits, treat easily and quickly fed into and discharged from the apparatus without injury to the containers, and that a single operator is able to rapidly handle two series of constantly moving containers.

' Having described my invention what I claim and desire to secure by Lettersfllatcut, is

1. An apparatus for pa1-aflining containers of the character described, comprisin a support for holding a series of such contamers, adjustable devices for directing the containers into engagement with such support,

and means for simultaneously and atadjacent points engaging an untreated container with such support and for ejecting a finished container therefrom in combination with a paraflin bath, and means for feeding said support into and through such bath. 2. In an apparatus of the described character, a sup ort for holdinga series of holders, a para 'n bath, means for imparting a step-by-step rotation to the support through such a bath, a series of holders carried by the support, means-operative between the recurrent steps of the support-for successively engaging with the holders containers to be treated and for simultaneously ejecting from the succeeding holders the finished containers, and adjustable devices for directing the containers into engagement with the holders. I

3. ln an apparatus of the described character, a support, two series of adjustable holders disposed side by side in pairs and carried by the support, means for imparting a step-by-step rotation to the support, a"

4. In an apparatus of the described character, a support, a series of holders carried tion, to the support, a paraffin bathin the path of the holders, a rock-shaft, an arm on said shaft, means controlled by said arm for engaging a container with one of said holders, adjustable guides for the direction of containers into such engagement, another arm on said shaft, means controlled by said latter arm fol-ejecting a container from another of said holders, and gears for actuating said rock arm in harmony with the movement of said support.

5. In an apparatus of the described character, in combination, sprockets and s rocket chains, holders in pairs side by si e supported by said chains, a paraiiin bath in the path of: said holders, means for intermittently' actuating the sprockets, means,---operable during the pause of the sprockets,

for simultaneously engaging containers with one pair of holders and for ejecting containers from another pair of holders, and guides,

adjustable relatively to the point of such pause, for directing the containers into such engagement.

6. In an apparatus of the described character, a pair of endless supports, holders mounted on the supports and adapted for the reception of containers of various sizes, a bath in the path of the supports, a pawl and ratchet for imparting a step-by-step movement to the supports, a rock shaft, an arm on said shaft, means controlled by said arm for engaging a container with one of the holders, another arm on said shaft, means controlled by the latter arm for ejecting a container from another of said holders, and a cam connected with and arranged to actuate the rock arm during the pause of the supports.

7. In an apparatus of the described character, sprockets and sprocket chains, adjust- ,able holders in pairs side by side supported by said chains, a paraflin bath in the path of said holders, means forintermittently actu-' ating the sprockets, and means,operable during the pause of the sprockets,-for simultaneously. engaging containers with one pair of holders and for ejecting containers from another pair of holders, the points of such engagement and ejection being closely contiguous.

8. In an apparatus of the described character, a holder comprising a pair of bars adapted to form at their opposite ends pivots for endless chains, a pair of plates adj ustable transversely on said bars, means for securing the plates in adjusted relation, and a gage-bar vertically adjustable upon the inner side of one of said plates.

9. In an apparatus of the described character, a holder comprising a pair of horizontally adjustable plates having bottom horizontal flanges, the forward portions of said plates and flanges flaring outwardly, and a horizontal gage-bar Vertically adjustable upon one of said plates, said gage-bar having an upwardly turned forward end.

10. In an apparatus of the described character, a holder for containers, said holder having horizontally and vertically adjustable engaging surfaces adapting the holder to containers of various sizes, in combination with a feed table having guides and means for the adjustment of said guides to-conform to the adjustment of the engaging surfaces of said holder.

In testimony whereof I afiix my signature in presence of two witnesses.

I ELLSWORTH LAKE. 

